#include <my_header.h> 
int epollAdd(int epfd,int fd)
{
    struct epoll_event event;
    event.events=EPOLLIN;
    event.data.fd=fd;
    epoll_ctl(epfd,EPOLL_CTL_ADD,fd,&event);
    return 0;
}
int epollDel(int epfd,int fd)
{
    epoll_ctl(epfd,EPOLL_CTL_DEL,fd,NULL);
    return 0;    
}
